/Engine/Source/Runtime/MovieScene/Public/MovieSceneTrack.h
Generic evaluation options for any track
struct FMovieSceneTrackEvalOptions
uint32:  1
bCanEvaluateNearestSection
True when the value of bEvalNearestSection is to be considered for the track
uint32:  1
bEvalNearestSection
When evaluating empty space on a track, will evaluate the last position of the previous section (if possible), or the first position of the next section, in that order of preference.
uint32:  1
bEvaluateInPostroll
Evaluate this track as part of its parent sub-section's post-roll, if applicable
uint32:  1
bEvaluateInPreroll
Evaluate this track as part of its parent sub-section's pre-roll, if applicable